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/*
* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of the
* License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#pragma once
#include "mforms/drawbox.h"
#include "base/threading.h"
#include <deque>
#include <stack>
#include "mdc.h"
#include "grt/spatial_handler.h"
namespace mforms
{
class ContextMenu;
};
class ProgressPanel;
class SpatialDrawBox : public mforms::DrawBox
{
base::Mutex _layer_mutex;
spatial::Layer *_background_layer;
std::deque<spatial::Layer*> _layers;
spatial::LayerId _last_autozoom_layer;
spatial::ProjectionType _proj;
boost::shared_ptr<mdc::Surface> _cache;
mdc::CairoCtx *_ctx_cache;
base::Mutex _thread_mutex;
spatial::Converter *_spatial_reprojector;
ProgressPanel *_progress;
mforms::ContextMenu *_menu;
std::stack<spatial::Envelope> _hw_zoom_history;
float _zoom_level;
int _offset_x, _offset_y;
int _initial_offset_x, _initial_offset_y;
int _drag_x, _drag_y;
int _select_x, _select_y;
std::pair<double,double> _clicked_coordinates;
base::Point _right_clicked_point;
struct Pin
{
double lat, lon;
cairo_surface_t *icon;
Pin(const Pin &other)
: lat(other.lat), lon(other.lon), icon(other.icon)
{
cairo_surface_reference(icon);
}
Pin(double lat_, double lon_, cairo_surface_t *i) : lat(lat_), lon(lon_), icon(i) {}
~Pin()
{
if (icon)
cairo_surface_destroy(icon);
}
};
std::vector<Pin> _pins;
double _min_lat, _max_lat;
double _min_lon, _max_lon;
bool _ready;
bool _dragging;
bool _rendering;
bool _quitting;
bool _needs_reprojection;
bool _select_pending;
bool _selecting;
bool _displaying_restricted;
base::Mutex _progress_mutex;
std::string _current_work;
spatial::Layer* _current_layer;
int _current_layer_index;
static void *do_render_layers(void *data);
void render_in_thread(bool reproject);
void *render_done();
void render(bool reproject = false);
bool get_progress(std::string &action, float &pct);
void restrict_displayed_area(int x1, int y1, int x2, int y2, bool no_invalidate = false);
public:
boost::function<void (mforms::View*, bool reprojecting)> work_started;
boost::function<void (mforms::View*)> work_finished;
boost::function<int (const char*, int)> get_option;
boost::function<void ()> area_selected;
public:
SpatialDrawBox();
~SpatialDrawBox();
boost::function<void (base::Point)> position_changed_cb;
boost::function<void (base::Point)> position_clicked_cb;
void set_context_menu(mforms::ContextMenu *menu);
std::pair<double,double> clicked_coordinates() { return _clicked_coordinates; }
int clicked_row_id();
std::deque<spatial::Layer*> get_layers() { return _layers; }
void set_projection(spatial::ProjectionType proj);
void reset_view();
void zoom_out();
void zoom_in();
void auto_zoom(const spatial::LayerId layer_idx = 0);
void select_area(bool flag);
void center_on(double lat, double lon);
void clear();
void set_background(spatial::Layer *layer);
spatial::Layer *get_background() { return _background_layer; }
void add_layer(spatial::Layer *layer);
void remove_layer(spatial::Layer *layer);
void change_layer_order(const std::vector<spatial::LayerId> &order);
spatial::Layer *get_layer(spatial::LayerId layer_id);
void show_layer(spatial::LayerId layer_id, bool flag);
void activate();
void invalidate(bool reproject = false);
virtual bool mouse_double_click(mforms::MouseButton button, int x, int y);
virtual bool mouse_down(mforms::MouseButton button, int x, int y);
virtual bool mouse_up(mforms::MouseButton button, int x, int y);
virtual bool mouse_move(mforms::MouseButton button, int x, int y);
virtual void repaint(cairo_t *crt, int x, int y, int w, int h);
base::Point offset() { return base::Point(_offset_x, _offset_y); }
bool screen_to_world(const int &x, const int &y, double &lat, double &lon);
void world_to_screen(const double &lat, const double &lon, int &x, int &y);
base::Point apply_cairo_transformation(const base::Point &p) const;
base::Point unapply_cairo_transformation(const base::Point &p) const;
void clear_pins();
void place_pin(cairo_surface_t *pin, const base::Point &p);
void save_to_png(const std::string &destination);
};
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